As a PhD researcher coming from an economic background, thanks for sharing.
You made an interesting analysis about human brain works. I agree with you that it is not a matter of complexity in building such a network, but rather a matter of necessity. Thank you for that comment.
From what I understand, the study group comes from the need of some people to learn the basic of these techniques, following the book of Goodfellow. Once you have a solid understanding, maybe we can ask ourselves if there are any better solutions to adopt. Am I to the point or not?